2025 ASTM S30400/S31603 Duplex 2205 Stainless Steel Angles | 304L 316L 321 Structural Beams Supplier
2025 ASTM S30400/S31603 Duplex 2205 Stainless Steel Angles | 304L 316L 321 Structural Beams Supplier
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High-Performance Stainless Steel Angles
Engineered with 304L/316L/321/2205 duplex alloys, delivering 5.8× improved corrosion resistance vs standard grades. Ideal for marine environments, chemical processing plants, and structural frameworks requiring ≥25-year service life.
Precision Custom Sizing
Available in:
• Thickness: 0.5-50mm (ASTM A484 tolerances)
• Lengths: 1-12m (±2mm/m straightness)
• Leg Dimensions: 20x20mm to 200x200mm
Custom-cut within 24hrs using CNC plasma systems.
Industrial-Grade Surface Treatment
120-grit polished finish achieving Ra ≤0.6μm smoothness, compliant with ASTM A480 for architectural applications. Passivation available per ASTM A967.
Certified Fabrication Services
• Cold bending (R/T=1.0 minimum)
• TIG welding (AWS D1.6 compliant)
• Decoiling capacity: 0.3-3.0mm thickness
• Laser cutting (±0.15mm accuracy)
• CNC punching (≤12.7mm thickness)
Global Compliance Assurance
Certified to:
• ASTM A276 (material standard)
• EN 10088-2 (EU compliance)
• JIS G4304 (Asian markets)
• Mill Test Certificates provided




